| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic tire having an inner liner for reducing rolling resistance, and improving low-temperature durability. <P>SOLUTION: This pneumatic titre 1 includes an inner liner 9 inside a carcass ply 6. The inner liner 9 is formed of a laminate including an inside first layer and a second layer adjacent to the carcass ply 6. The first layer is constituted of an elastomer composition including 99.5-60 mass% of a styrene-isobutylene-styrenetriblock copolymer and 0.5-40 mass% of a styrene-maleic anhydride copolymer, and is 0.05-0.6 mm in thickness. The second layer is constituted of an elastomer composition including any of a styrene-isoprene-styrenetriblock copolymer and a styrene-isobutylenediblock copolymer, and is 0.01-0.3 mm in thickness. In the inner liner 9, thickness Ge in a shoulder position Pe is larger than a thickness Gc in a crown central position Pc. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
